Abstract: Wireless sensor network (WSN) refers to a group of spatially dispersed and dedicated sensors for monitoring and recording physical conditions of the environment and organizing the collected data at the central location. WSNs measures the environmental conditions like temperature, sound, pollution levels, humidity, wind, and so on. Detecting isolate safe areas is significant for various applications of event detection and disaster monitoring since valuable real-time information can be provided to save people who are trapped in isolate safe areas. Centralized method detects isolate safe areas via discovering the holes in an event area but results in detection delay, so distributed isolate safe area detection method is implemented that starts scanning from the potential isolate grids to discover all the isolate safe areas effectively. Keywords: Sensor networks, isolate safe area, area detection, rescue.